Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.Analyse: the core idea of this problem is...
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其他好文 时间:
2015-07-31 12:52:11
阅读次数:
108
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.Analyse: Using binary search to divide the sorted arr...
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其他好文 时间:
2015-07-31 12:19:02
阅读次数:
102
数据库名称 : PROD1update employees set salary = salary + 1000 where LAST_NAME = ‘Bell’;select LAST_NAME, salary from employees where LAST_NAME=‘Bell’; (结果为...
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其他好文 时间:
2015-07-31 12:18:01
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77
查询最新时间的每个人的记录SELECT * FROM station2015 a WHERE EXISTS (SELECT 1 FROM (SELECT StationNum, MAX(DataTime) New_Time FROM station201...
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数据库 时间:
2015-07-31 12:08:52
阅读次数:
138
1.求表中某列的和,并把其值赋给一个变量:
SqlCommand cmd = new SqlCommand( "select sum(aa) from table ", conn);
Int32 aa= (Int32) cmd.ExecuteScalar();
2.判断字段的值是否为数字
select * from hr_user where isnumeric(usi...
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数据库 时间:
2015-07-31 10:41:08
阅读次数:
203
Given an array of n integers where n > 1, nums,
return an array output such that output[i] is
equal to the product of all the elements of nums except nums[i].
Solve it without division and in O...
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其他好文 时间:
2015-07-31 10:33:59
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144
select * from rs_special_question order by id desc;select count(*) from rs_special_question;update rs_special_question set identity = "seller" where i...
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数据库 时间:
2015-07-31 10:28:37
阅读次数:
146
问题描述Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after rainin...
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移动开发 时间:
2015-07-31 10:20:20
阅读次数:
133
Given a list, rotate the list to the right by k places, where k is non-negative.
For example:
Given 1->2->3->4->5->NULL and k = 2,
return 4->5->1->2->3->NULL.
分析:注意k有可能会大于list的长度,所以先求出list...
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其他好文 时间:
2015-07-31 06:41:05
阅读次数:
119
前言:我们已经使用工厂模式得到需要的service对象,以下方法可以通过Castle.DynamicProxy给service对象的方法添加拦截器。/// /// 创建服务根据BLL接口/// public static T CreateService() where T : class{ v...
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其他好文 时间:
2015-07-30 23:10:40
阅读次数:
375